By Comparing Globular Clusters,you Find That Cluster A's RR Lyrae

question 56

Multiple Choice

By comparing globular clusters,you find that Cluster A's RR Lyrae stars are 100 times fainter than Cluster B's RR Lyrae stars.You know that both clusters have approximately the same chemical composition and age,and thus their RR Lyrae stars should have the same luminosities.Which is true about the clusters' distances?

• A)Cluster A is 10 times farther away than Cluster B.
• B)Cluster A is 10 times closer to us than Cluster B.
• C)Clusters A and B are approximately the same distances from us.
• D)Cluster A is 100 times farther away than Cluster B.
• E)Custer A is 100 times closer to us than Cluster B.

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Definitions:

Economies of Scale

Cost benefits that organizations acquire by scaling up their operations, wherein the cost for each unit produced tends to fall as the scale of operation enlarges.

Min Per-unit Costs

The lowest possible cost of producing one unit of good or service, achieved through efficient use of resources and optimal production scale.

Employee Shirking

Refers to employees putting in less effort than agreed upon or expected, often when they believe their lack of effort will not be noticed or punished.